Com o objetivo de descrever o uso de medicamentos prescritos e não prescritos, realizou-se um estudo descritivo em gestantes em pré-natal no Sistema Único de Saúde (SUS) no município de Santa Rosa, Estado do Rio Grande do Sul. Os dados sobre o uso de medicamentos foram coletados através de entrevista estruturada e consulta aos prontuários das gestantes. A prevalência do uso de medicamentos foi de 90%, correspondendo a uma média de uso de 4,1 medicamentos por gestante, dos quais 83,6% foram prescritos e 16,4% foram utilizados por automedicação. Do total de medicamentos, 17,5% estão incluídos na categoria C de risco ao feto. O uso de medicamentos é frequente, e a maioria das gestantes utilizou um ou mais fármacos prescritos ou não prescritos. Esses dados sugerem a necessidade de medidas de intervenção para promover o uso racional de medicamentos durante a gestação.
(-)-Linalool is a monoterpene compound commonly found as a major component of the essential oil of several aromatic species. It has been shown to exert several actions in the central nervous system (CNS) and is able to inhibit glutamate receptors. This study investigated the effect of (-)-linalool in depression and genotoxicity models. Mice were given (-)-linalool (10, 50, 100 or 200 mg/kg i.p.) and were evaluated using the tail suspension test (TST). Genotoxic and antigenotoxic effects in blood and brain were investigated using the alkaline comet assay. In the TST, the animals that received doses of 100 and 200 mg/kg presented a decrease in immobility times. No increase in DNA damage was observed in either tissue, and resistance to DNA oxidative damage induced by hydrogen peroxide did not increase. (-)-Linalool showed an antidepressant-like activity in the TST and was unable to cause damage/protection to DNA in brain tissue and peripheral blood. This investigation provides evidence of an important effect of (-)-linalool on the CNS; however, more studies are necessary to support its possible clinical uses.
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